Improvement in rocking-chairs



H. LAMPREGHT, JI.`

Rocking-Chair.'

No. 207,359. Patented Aug. 27, 1878,

UNITED STATES PATENT OEEIoE.

HUGO LAMPREGHT, JR., OF NEW YORK, N. Y., ASSIGNOR TO HUGO LAMPREGHT, SR., OF SAME PLACE.

IMPROVEMENT IN ROCKING-CHAIRS.

Specification forming part of Letters Patent No. 207,359, dated August 27,' 1878; application filed July 24, 1878.

To all whom 'it may concern:

Be it known that I, HUGO LAMBREGHT, Jr., of New York, in the State of New York, have invented a new and useful Improvement in Rocking-Chairs, of which the following is a specification In the accompanying drawin g, Figure I represents a longitudinal section of a rockingchair embodying my improvement. Fig. II is a plan of one-half of the chair.

A is the lower and stationary part of the chair, and B the upper or rocking part. These two parts areconnected by a diagonal bar, C, turn-ing on bolts a and b, and guiding the motion of the chair. To the lower part, A, a stud, N, is Iirmlyattaohed near the middle, and a similar stud, M, is attached to the upper part, B. These studs N and M may be attached to suitable plates N' and M', fastened to the chair. Upon these studs N and M levers or links D E D E' are placed, turning freely on said studs and on their joint-pins J J,- of equal lengths,`and forming a parallelograni.

Upon the stud N a suitable spring, S, is placed, the ends of which bear against the joint-pins J and J', so that when the upper part of the chair is moved in one direction, and consequently the parallelogram with it, the action of said spring will force the same into its original position, thereby assisting the operation of rocking the upper part, B.

' What I claim as my invention, and desire to secure by Letters Patent, is-

In combination with a stationary part, A, and the movable part B of a chair, connected by a diagonal bar, C, the parallelogranl D E D E', placed on studs N and M, firmly attached to the two parts A and B, forming the frame of the chair, and the spring, S, arranged to operate in the manner and for the purpose substantially as described.

HUGO LAMPREOH'I, JR.

Witnesses:

HENRY E. ROEDER, J. B. NoNEs. 

